Surface drain



Aug. 31, 1943. F. A. WARREN 2,328,315

SURFACE DRAIN Filed July 15, 1941 I art/OM04 gulf/A1 4. MW

1 Patented Aug. 31, 1943 v UNITED w-LSTATES PATENT OFFICE,

1 i r 2,328,315 i i i v dd SURFACE DRAIN! V i Frederick Anton Warren, Atlanta, Ga. d l lpplication luly, 15,1941, SerialNo; 402,509 1 2 Claims. (01. 182-31) Genericallythis invention; relates to a drain I devicebut it ismor particularly directed to a surface or floor drain having aremovable sediment container and comprisinga simplified structural arrangement. 1 d

One of the, principalcbjects of this inventic-n is the provision of a duo-drain comprising a grate, sediment container and body designed to mainsurface even when the, container is full of lieuid,

, and solid matter and is completely clogged, without the overflow passing into or through, the contents of the container.

Another important object of this invention is the provision of an, auxiliary overflow means 10-,

cated at the center of, the sediment container and providing an outlet for surface'drainage directly through the device to the main drain when stoppage occurs in said sediment container.

A further; important object of this invention istheprovi'sion of a drain fitting for floors and,

the like having a body portion, a debris and sediment container formed with an annular series of drainage openings, and a centrally disposed over flow tube, extendingthrough said, container, a

, c'ontainer and without flowing into or through will become apparent as thej description proceeds, the invention resides in the construction, combination and arrangement of partshereinafter more fully described and claimed, andill ustrated in the accompanyingdrawing, in which like'chan actors ofreference indicate like parts throughout the several figures, ofwhichz Fig. l is a top plan view of my improved duodrain.

Fig, 2 is a vertical section through Fig. l.

The drainagel devices of this character with which I am familiar have proven deficient inseveralregards, such as embodying acomplex construction-and a number of parts, costly to ma-mu facture and installs-and when the sedimentbasket or container becomes filled with sediment and debris the flow'from the floor or other surface continuingto passinto the filled container and through either the contents or overflowing over supporting lugs M located intermediate openings 1 perpendicular wallportion l5 terminating: in an the edge or at a point adjacent the upper edge of the container, not only materially retarding the flow through the device but, in many instances, substantially preventing theifiow of the surface water'therethrough, and it was to overcome such deficiencies by providing my improved drain of simplified constructionand having a sediment container constructed with a central tube extending therethroughand cooperating with a grate cover having a central strainer area overlying said tube, the openings in said area, being of a size and 50 arranged as to permit a maximum of flow for direct discharge from the surface to the main drain whenthe container becomes full of sediment anddebris withoutpassing "through the actual contents of the, container, and

whereby the flow is maintained substantially constant at all times, that I designed the device forming the subject matter ofthis invention.

In the illustrated embodiment characterizing this invention there is shown a surface drain assembly A comprising a substantiallycun shaped body portion 5 formed with a cylindrical depending portion 6, the bottom I of which is; formed with a centrally disposed main outlet opening 8 adapted to fit. over or' receive the ,upper end of a main drainage pipe section 9, as will directly more fully appear.

Substantiallyat the point of ,jointure of the vertical wall portion 10 and the curvedlower portion II is an integral; annular seepage pan vI2 having communication with the interior of the body portion byanannular series of-spaced open ings I 3. 1 Pan |-2 inaddition todirecting any seepage surrounding the upper end of the body 5 to the-interior thereof for discharge throughdrain 9 also provides a means for anchoring the drain body in the concrete or other material in which said bodyis embedded. Integrally formed onthe inner wall I!) isan annular series of container I3 and the upper end of the body, 5;

Fitting, within the body 5 is a substantially bowl-lik 'sediment and debris container 13 and,

supported thereon with its upper surface, in the present instance, flush with the upper edge of said body "is a grate closure :member C and which constitutes the main inlet of said device, as will more fully appear as the description proceeds,

The sediment container B is formed with a annular integral flange or thickened portion It of a dimension adaptedto snugly fit withinwell III of saidbody' portion and toseat on lugs M to suspendingly support said container. The bottom portion ll of the container is rounded to substantially conform to the configuration of the lower portion ll of the body and is formed with a lateral flange t8, the outer edge of which is integrally connected to the lower end of the vertical wall I5. Said bottom portion I! is centrally formed. with an integral upstanding overflow tube [9, the upper end of which is flush with the upper edge of the container. Said container B is of a dimension to form a channel space Eli surrounding and underlying said container and terminating in a restricted portion 2! intermediate said container and body portion opposite the annular series of slots 22 formed in wall l5 and adapted to permit drainage of the container into said channel space for discharge into main drain 9. The main drain 9 is adapted to extend within portion 6 and be sealed therein by calking 23 to form a continuation of portion ll surrounding the upper end of drain 9 and which effects a leakproof j-ointure of the drain and body portion.

The removable'drain cover or grate C is formed with a rim portion 24 of a thickness corresponding to portion It on which it is adapted to seat with its upper edge flush with the upper edge of wall I0 and is formed with a central annular strainer portion 25 formed with a pluralit of comparatively small strainer openings 23, the outer edge of said portion 25 beingformed with :5. depending flange 27 adapted to fit over the upper end of overflow tube 09 when the grate is in operative position and form an interlockin brace connection therewith and effect a direct drainage path from the upper surface of said grate through said strainer portion and tube to the main outlet 9. Intermediate the rim portion 24 and strainer portion '25 said member C is formed with annular. series of slots 28 constituting the main inlet area through which surface drainage of Water or other liquids and solid matter flows into the container B.

While the operation of my improved drain is clear from the above description, it might be well to further state that the normal drainage flow from the surface to be'drained surrounding and contiguous to said drain assembly when operatively mounted with said grate substantially flush with said surface, the normal drainag flow of liquid and solids is through the slot or grate openings 23 into said container 13 and the liquid and to a certain, extent solid matter through openings 22 into the channel space 2E! and to the main outlet or drain 9. However, when the container has been filled with sediment to the extent that the openings 22 are clogged the water or other liquid will rise and cut off drainag flow through openings 28, and when this occurs the drainage stream without interruption will overflow through strainer openings 26 into tube 28 for direct discharge into the main outlet drain 9, so that the drainage flow will continue substantially constant notwithstanding the filling of the container, the size and arrangement of the openings 26 being such as to permit a maximum flow therethrough without becoming easily clogged It is obvious that a handle or other gripping means may be connected to said container B so that to clean the device all that is necessary is to remove the grating C and lift out and empty the container.

From the above it will be apparent that Ihave provided a duo-drain device including a removable sediment container adapted to initially dirent the water or other fluid flow including foreign matter such as sludge, sticks, sand, and other materials into said container, and when the latter is full and stoppage occurs then directing the flow through a centrally arranged strainer area and overflow tube directlyto the main drain, without passing into or directly through the contents of the container, such device being especially adapted for use in all types of commercial and industrial buildings andelsewhere, where it is desired to prevent clogging of the traps and waste line and to maintain the drainage flow substantially constant at all times, yet one simple in construction, comprising few parts, easily installable, manufacturable at a reasonable cost, and efficient for the purposes intended.

Although in practice it has been found that the form of the invention illustrated in the accompanying drawing and referred to in the above description as the preferred embodiment is the most efficient and practical; y'et realizing the conditions concurrent with the adoption of the invention will necessarily vary, I desire to emphasize that various minor changes in details I end of a conventional drain pipe, said body hav- 7 channel.

ing a depending cylindrical portion extending be: low the upper end of said drain pipe and forming a sealing space terminatin flush with the bottom of said body and the upperend of said drain pipe, a sealing means in said space, an annular series of lugs formed interiorly of the drain body, a sediment container supported on said lugs with its upper end forming an annular seat and of a dimension to form a channel space intermediate its bottom and the bottom of said drain body, said container formed with a series of openings normally in communication with said channel, an overflow tube disposed centrally of said sediment container adapted to discharge into said channel at the inlet end of said drain pipe, and a grating overlying said sediment con tainer and disposed on said seat.

2. A floor drain comprising a casting constituting a drain body adapted to embrace the upper end of a conventional drain pipe, said body having an uninterrupted interior wall surface at its upper end and terminating at itsbottom in a- 1 annular anchor and seepage, pan member formed on said drain body substantially central of its height and having communication with said F. A. WARREN. 5 

